Phosphor and method for preparing the same
First Claim
Patent Images
1. A phosphor devoid of rare earth elements comprising a material having a general composition formula expressed by M1Si6N8-XOX (satisfying 0<
- x≦
1), wherein M is alkaline earth metal.
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Abstract
Disclosed is a phosphor and a method for preparing the same. The phosphor comprises a material having a general composition formula expressed by M1Si6N8-XOX (satisfying 0≦x≦1), where M is alkaline earth metal.
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Citations
18 Claims
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1. A phosphor devoid of rare earth elements comprising a material having a general composition formula expressed by M1Si6N8-XOX (satisfying 0<
- x≦
1), wherein M is alkaline earth metal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- x≦
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9. A phosphor devoid of rare earth elements comprising a material having a composition expressed by SrSi6N7.95O0.05.
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10. A method for preparing a phosphor devoid of rare earth elements comprising the steps of:
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providing a powder mixture comprising Si3N4 and at least one of M3N2 and MO; and sintering the powder mixture to form the phosphor having a general composition formula expressed by M1Si6N8-XOX (satisfying 0<
x≦
1), where M is alkaline earth metal. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A method for preparing a phosphor devoid of rare earth elements comprising the steps of:
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providing a powder mixture comprising Si3N4 and at least one of M3N2 and MO; and sintering the powder mixture to form the phosphor having a composition expressed by SrSi6N7.95O0.05.
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17. A phosphor devoid of rare earth elements consisting essentially of a material having a general composition formula expressed by M1Si6N8-XOX (satisfying 0<
- x≦
1), wherein M is alkaline earth metal.
- x≦
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18. A method for preparing a phosphor devoid of rare earth elements comprising the steps of:
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providing a powder mixture comprising Si3N4 and at least one of M3N2 and MO; and sintering the powder mixture to form the phosphor consisting essentially of a general composition formula expressed by MISi6N8-XOX (satisfying 0<
x≦
1), where M is alkaline earth metal.
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Specification